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Sliding Wear Behavior of AM60 Alloys with Alloyed Yttrium

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Abstract:

In this study, the wear behavior of AM60 alloys adding different amounts of yttrium (0, 0.5, 1, 1.5, and 2 wt%) during dry sliding has been investigated. The microstructure observation and EDS analysis demonstrated that adding yttrium in AM60 alloy formed a new phase Al2Y and minimized the precipitation of Mg17Al12 phase. The wear rate and friction coefficient of AM60 alloys adding yttrium were lower than that AM60 alloy under the same condition. The worn surface was covered with long continuous grooves parallel to the sliding direction. The wear resistance of AM60 alloy was improved when yttrium was added due to the formation of uniformly is tribute finer and harder Al2Y precipitates. The harder Al2Y precipitates increased the hardness and wear resistance of the AM60 alloy and reached the maximum at 1 wt% Y.

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Periodical:

Advanced Materials Research (Volumes 1120-1121)

Pages:

973-977

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.973

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Online since:

July 2015

Authors:

Qian Qian Zhang*

Keywords:

AM60 Magnesium Alloy, Sliding Wear, Yttrium

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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